Rent-a-Roof Buyout: What It Actually Costs to Own Your Panels Outright
Rent-a-roof buyout: what it costs to own your panels outright
The short version
There’s no market price for a rent-a-roof buyout. The figure comes from the clause in your lease, and leases differ. Some contain a formula that falls every year: two published examples, rolled forward to today, give about £8,450 and £14,500. Some have no buyout clause at all, and quotes of £20,000 and more have been reported. The Feed-in Tariff income you’d inherit on an early system is worth roughly £18,000 to £21,000, so a formula price can be a bargain and a negotiated one can be full value. Get the formula, the VAT treatment and the notice period in writing before you react to a number.
If you’ve got “free” solar panels on your roof from somewhere between 2010 and 2015, strictly speaking you don’t have free solar panels. You have a lease. Someone else owns the kit, collects the Feed-in Tariff (FiT) income it earns and holds a registered interest in your roof. Sooner or later, often the week a solicitor emails you mid-sale, you ask the obvious question: what would it cost to own them outright?
The answer sits in your lease, and there’s no standard price. This pulls together published lease formulas, reported quotes, Which? and Guardian coverage, and the lenders’ rules as they stand in September 2026. It includes the income maths worth running before you pay anyone, and it says plainly where the evidence is thin.
What rent-a-roof actually was
When the FiT launched in April 2010 it paid 41.3p per kWh for small retrofit systems, at a time when the average home paid about 12.6p per kWh for electricity. That gap created a business model. Companies including A Shade Greener, HomeSun, Freetricity and British Gas fitted a system for nothing in exchange for a lease of your roof, usually for up to 25 years, and collected the FiT payments. You kept the free electricity.
The catch was the paperwork. The lease is registered against the property, so it travels with the house. Which? worked out that a household that signed up in 2011 could miss out on as much as £23,000 of FiT income on a 4kWp system, against savings of a little over £5,000 from the free electricity. Leases have also changed hands. Homeowners on forums report finding their lease held by a different company from the one that fitted the panels, and Which? points to Ofgem’s Central FIT Register as the way to find out who owns a system.
Two dates matter. The FiT closed to new applicants on 31 March 2019, which ended the model. And solar PV accredited before 1 August 2012 gets 25 years of FiT support rather than 20, so the earliest systems keep paying their owners until roughly 2035 to 2037. That income is what a buyout gives you the right to.
Estimates of how many households took a roof lease are rough. A Which? survey of solar owners found about 3% had one, and applied to the roughly 900,000 homes that got solar in the FiT years that suggests something like 27,000 households. Treat that as an order of magnitude, not a count.
Why the lease still bites in 2026
Most people only discover their lease when it blocks something, and a sale is the classic. The buyer’s lender checks any lease of roof space against clause 5.20 of the UK Finance Mortgage Lenders’ Handbook for England and Wales. Northern Ireland uses clause 5.14 and doesn’t accept a lease of roof space at all. The requirement that catches many older leases is a break clause saying the lease ends if the lender repossesses the property. If yours doesn’t have one, the lender will want it added by a Deed of Variation, and the solar company has little reason to hurry.
Then there are consent clauses. Which? analysed one rent-a-roof contract and found the householder needed the company’s consent to sell or to alter the building near the panels, and had to compensate the company for missed FiT payments if the panels came off for roof work. Our guide to the free solar panels that can stop you selling your house goes through how this plays out in conveyancing, including the cheaper fix for leases whose only problem is lender wording.
Some contracts have no buyout clause at all
The Guardian’s 2018 reporting on 25-year solar contracts described a father who signed in 2011 with no buyout option, and a homeowner whose sale only went ahead after reporters intervened, on payment of £20,500 that the agent called non-negotiable. If your deed is silent on buying the system, you’re negotiating from scratch, which makes the income check in the next section more important.
How the buyout price is set
A rent-a-roof buyout isn’t a price for hardware, and it isn’t a market rate. It’s whatever your lease says. The published examples I could find fall into three types.
- A schedule that falls each lease year. In a 2018 MoneySavingExpert forum thread, a homeowner posted a clause setting the price at a figure per kW for the lease year, times installed capacity. It started at £4,750 per kW in year 1 and fell to £487.03 in year 25, with £4,567.80 in year 7. For the poster’s 1.88kW system that came to about £8,590. The same table in lease year 15 gives £3,619.20 per kW, roughly £14,500 for a 4kW system.
- Straight-line depreciation of the system’s original price. A HomeSun quote posted in the same forum used (303 minus months elapsed) divided by 303, times the system price, which was £17,200 in that lease. At 77 months it gave £12,829.04, or £15,394.85 with VAT. At 179 months, about 15 years in, the same formula gives about £7,040, or £8,450 with VAT. That lease also required 3 to 6 months’ written notice, with payment on the day the notice was served.
- No clause, so a negotiated figure. That’s the Guardian case above, and the reason quotes of £20,000 and more exist at all.
Notice what the first two don’t mention: your FiT income. They’re built on what the system cost, and on a 2011 system that can be far below the income the funder gives up. It’s also why a formula price can be a good deal, and why it’s worth reading your clause before assuming the worst. These are other homeowners’ leases from 2018, so yours may differ, and I haven’t found a 2026 quote using either formula.
Whatever the method, the income is the number to check any quote against. Here’s the maths for an early system:
Worked example: 4kWp, April 2010 to March 2011 cohort, about 9 years left
Assumptions, so you can redo it: your FiT statement gives your exact tariff, your generation meter or monitoring app gives your yield, and your lease gives your end date. Deemed export is 50% of generation.
So the income is worth roughly £18,000 to £21,000. A quote near that is full price for the income. A formula price well under it hands you value. A negotiated figure well over it is where the talking starts. You’d also inherit the kit: a 2011 inverter may need replacing, original warranties will have lapsed, and from 1 April 2026 FiT rises follow CPI rather than RPI, which grows the income more slowly than it used to.
What the leaseholder collects: annual FiT generation income by cohort
The top bar and the 2018/19 bar apply the 3.4% CPI uplift to Ofgem’s April 2025 rates (74.37p and 5.65p). The other two are my estimates, carrying each cohort’s starting tariff forward with the same yearly uplifts. Your FiT statement is the source of truth.
Reported figures, and what each cohort earns
Here’s what people have reported paying or being quoted. None of these is a 2026 quote from a funder, and the last is an unverified post on a Q&A site with no clear date, so read them as shapes of price rather than benchmarks.
| Where it was reported | What it was | Figure |
|---|---|---|
| The Guardian, 2018 | Sale allowed after reporters intervened, on buying the system; agent called the price non-negotiable | £20,500 |
| MoneySavingExpert forum, 2018 | HomeSun-type lease: system priced £17,200, 77 months elapsed, straight-line formula | £12,829 plus VAT (£15,395) |
| MoneySavingExpert forum, 2018 | Lease with a per-kW schedule: 1.88kW system in lease year 7 | About £8,590 |
| Q&A site post (seen in 2024) | Seller agreeing a price cut so the buyers could fund a buyout of an A Shade Greener system fitted about 13 years earlier | £14,000 off the price |
The spread doesn’t come from cohort alone. It comes from the clause. A cohort tells you what the funder is giving up, which is the other half of the picture:
| Installed | 2026/27 generation rate, 4kW retrofit | FiT ends | Generation income on 3,500kWh |
|---|---|---|---|
| April 2010 to 2 March 2012 | 76.90p/kWh | 2035 to 2037 | £2,692 |
| 3 March to 31 July 2012 | about 35.6p/kWh | 2037 | about £1,244 |
| August 2012 to March 2015 | about 22p to 28p/kWh | 2032 to 2035 | about £750 to £1,000 |
| April to June 2015 | 21.07p/kWh | 2035 | £737 |
| April 2018 to March 2019 | 5.84p/kWh | 2038 to 2039 | £204 |
Starting tariffs were 41.3p in April 2010 (43.3p from April 2011), 21p from 3 March 2012 and 13.39p in April 2015. Rates fell quarterly between 2012 and 2015, so systems in that window sit anywhere in the range shown. Rows two and three are my estimates; the others come from Ofgem’s April 2025 table plus 3.4%. Deemed export adds about £95 a year on pre-August-2012 systems and about £134 after.
Anyone quoting a “typical” buyout cost without asking for your lease and installation date is guessing.
What you can actually do about a quote
- Ask for the calculation. If your lease has a formula, the quote should match it to the penny.
- If a price is called non-negotiable, ask what it’s based on, then compare it with the income maths above.
- Ask whether VAT is included, and get the answer in writing.
- If you’re selling, consider funding the buyout through a price reduction, as the seller in the Q&A post above did, rather than paying first and hoping to recoup it.
Buy out, wait it out, or fix the lease instead?
There are four routes, and picking the wrong one is where money gets wasted:
| Route | Typical cost | Timescale | Best when |
|---|---|---|---|
| Buy the system outright | Set by your lease formula, or negotiated. See the reported figures above. | At least one lease asks for 3 to 6 months’ notice; otherwise ask | A sale or remortgage depends on it, or you want the FiT income on an early system |
| Deed of Variation (lender wording only) | About £500 plus VAT in solicitor fees, plus £200 to £250 admin from the solar company (broker guides) | 2 to 6 weeks (broker guides) | The lease is fine apart from lender protections, and you’re not selling imminently |
| Wait for the end of the lease | £0 to wait, but check what the end-of-lease clause says | Whatever’s left of the term | Under about 5 years left and no transaction looming |
| Transfer the lease to a buyer | No upfront cost, but a smaller buyer pool and a possible price discount | Adds conveyancing time | The buyer’s lender accepts the lease as it stands |
My rules of thumb:
- Under five years left: wait, unless a sale, remortgage or probate forces the issue, and only after reading the end-of-lease clause. Reported options at the end of a roof lease include buying the panels, having them removed, or renewing, and the terms differ.
- Sale blocked only on lender wording: do the Deed of Variation first. It’s hundreds of pounds, not thousands, and it solves the actual problem.
- Early cohort, seven or more years left, no sale pending: run the income maths. A formula price well under the value of the income is the interesting case. At £14,500 against about £2,787 a year, the simple payback is around five years, before inverter costs. That’s not a guarantee, and the income stops when the FiT ends. For a comparison, our guide to payback on a brand-new system works through the numbers.
- Late-scheme systems (2018 to 2019): the income is about £340 a year including export, so a buyout rarely pays for itself. Wait, or ask for a transfer figure in writing.
Check one clause before any of this: what happens at the end of the lease. If removal ever becomes your job, for example at the end of the panels’ life after a buyout, here’s what solar panel removal costs in 2026. For scale, a 2018 HomeSun email quoted about £1,800 for removal after the purchase price was paid.
The buyout process, step by step
- Find out who owns the system and the lease. Which? says Ofgem’s Central FIT Register team (fitownership@ofgem.gov.uk) can confirm the owner of a FiT-registered system if you can prove you own the property. Your title register at HM Land Registry will show who holds the lease over the roof. The registered holder, not necessarily the company that knocked on your door, is who you deal with.
- Read the buyout clause. Look for the formula or schedule, the notice period, and whether payment is due on the day you serve notice. If there’s no buyout clause, you’re negotiating.
- Ask for a written quote and the working behind it. Ask which method was used, how the remaining term was counted, whether VAT and any admin fees are included, and what happens to the FiT payments.
- Sense-check it. Multiply your tariff by your yield and by the years left, as in the worked example. Ten minutes tells you whether the quote is under, near or over the value of the income.
- Do the paperwork properly. You’ll need the notice served as the lease requires, the leasehold title closed at the Land Registry, and a change of FiT ownership processed by your FiT licensee so the payments switch to you. A conveyancing solicitor should handle the first two; budget a few hundred pounds.
- Sort your household admin. Collect the MCS certificate and any warranties, tell your buildings insurer the panels are now yours, and decide your export strategy (next section).
After the buyout: FiT transfer, SEG and VAT
Three things change once you own the system.
The FiT income becomes yours. Once the change of ownership is processed, the remaining generation and export payments go to you until the original end date. From 1 April 2026 the yearly uplift uses CPI rather than RPI, and it was 3.4% this year.
You get a choice on export. You can opt out of the FiT export payments and take a Smart Export Guarantee tariff instead while keeping the generation payments. That needs a smart or export meter, and you can’t be paid both for the same electricity. FiT export pays 5.43p per kWh this year on systems finished before August 2012, deemed at 50% of generation. In mid-September 2026 open SEG tariffs ranged from about 6p (ScottishPower SmartGen) to about 13p (Fuse Energy), and tariffs tied to your electricity supply from about 12p to 16p. At 13p, SEG beats deemed export on a pre-August-2012 system once you export more than about 21% of what you generate. Our 2026 ranking of the best SEG tariff rates is the place to start. FiT systems needed an MCS certificate at installation, so ask the funder for a copy.
When the FiT ends, between 2035 and 2039 depending on cohort, the panels can carry on generating and you’d move entirely to an export tariff.
Check the VAT before you agree a price
Don’t assume a quoted buyout is VAT-free. The 2018 HomeSun quote above added 20% VAT to the formula price. The zero rate for energy-saving materials, which runs until 31 March 2027 and then returns to 5%, covers the installation of qualifying equipment, so I wouldn’t assume it applies to buying existing panels from a lease company. Ask the funder how VAT is treated and get it in writing; HMRC’s VAT Notice 708/6 is the reference. What the relief does cover is new work you commission once you own the system, such as adding a battery, which has qualified as a standalone install since 1 February 2024. If you’ve been putting that off, our guide to UK solar grants and the 0% VAT window has the current dates and eligibility.
Selling with a lease in place
If a sale is what pushed you here, you have three workable endings, in descending order of tidiness:
- You buy out before completion. The cleanest. The lease comes off the title, lenders are happy, and the panels become a selling point.
- The price drops by the buyout figure. Same economics, different pocket: the buyer funds the buyout after completion through a lower offer.
- The buyer takes the lease on. It’s possible. One HomeSun email from 2018 said the lease transfers on sale once the new owner returns a form with proof of ownership from the Land Registry. It needs a lender who accepts the specific deed, sometimes after a Deed of Variation, and it can cost you some room on price.
Whichever you choose, get the buyout figure in writing before you list, not after an offer lands. A quote produced under sale pressure is a quote produced without leverage. If you’re on the other side of the table, our guide to buying a house with solar panels lists what to ask the seller’s solicitor before exchange.
Red flags and bad offers
Four patterns I’d walk away from:
I’d treat any unsolicited caller offering to cancel a rent-a-roof lease for an upfront fee as a red flag. The route to a buyout runs through the leaseholder on your title, in writing.
A figure with no method behind it can’t be checked, and unchecked numbers tend to drift upwards. Ask for the working. It’s your contract.
Leases change hands, and companies fold. Before money moves, check the payee against the leaseholder on your title register and the owner Ofgem’s Central FIT Register has on record.
Once you own the panels you become a target for buyback offers. Which? reported a member offered £4,987 for 19 years of FiT payments they expected to be worth £14,250. Compare any lump sum with the income maths before you answer.
Frequently asked questions
How much does a rent-a-roof buyout cost in the UK in 2026?
It depends on your lease, because there’s no market price. Some leases contain a formula that falls every year: two published examples, rolled forward to today, give about £8,450 (including VAT, for a system originally priced at £17,200) and about £14,500 (for a 4kW system). Some leases have no buyout clause, and figures of £20,500 and more have been reported. The FiT income you’d inherit on an early system is worth roughly £18,000 to £21,000, which is the number to check any quote against. Always get the formula, the VAT treatment and the notice period in writing before you react to a figure.
Do I get the Feed-in Tariff payments once I’ve bought my panels out?
Yes, once the change of FiT ownership has gone through with the FiT licensee, the remaining generation and export payments come to you, index-linked, until the original end date. From 1 April 2026 those rises use CPI rather than RPI. You can also opt out of the FiT export payments and take a Smart Export Guarantee tariff instead while keeping the generation payments, which needs a smart or export meter and is worth modelling against the deemed 50% export the FiT assumes.
Is a buyout worth it if my lease ends in a few years anyway?
Usually not, but read the end-of-lease clause first. Reported options at the end of a roof lease include buying the panels, having them removed, or renewing, and the terms differ between leases, so paying five figures to speed that up by two or three years rarely makes sense. The exceptions are when a sale, remortgage or probate depends on clearing the lease, or when the formula price is small enough to treat as conveyancing admin. With under about five years left, my default advice is to wait unless a transaction forces your hand.
The lease felt like free money in 2011. In 2026 it’s a line item on your title, on your sale contract and, if you buy it out, on your FiT statement. It’s also a line item you can price. Get your clause, get a written quote, run the income maths yourself, and the number stops being frightening and becomes a decision. None of this is legal or financial advice, so if a five-figure sum is involved, have a conveyancing solicitor read the lease before you pay.
Sources
- Which?: solar panel grants and solar buyback explained (March 2026)
- The Guardian: homeowners trapped by 25-year solar panel contracts (2018)
- UK Finance Mortgage Lenders’ Handbook: solar panels and the Lenders’ Handbook
- MoneySavingExpert forum: selling a house with rent-a-roof solar panels (2018)
- Ofgem: Feed-in Tariffs for generators, including opting out of FiT export
- Ofgem: Feed-in Tariff tariff table, 1 April 2026
- House of Commons Library: VAT on solar panels and other energy-saving materials
